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It will be hard to tell if a Check Engine Light code has popped up since the car won’t run, but you can still hook up a code reader to see if there are any faults. Any codes present may lead you to the problem. It could be a sensor (camshaft, crankshaft, oxygen, or mass air flow), a pinched wire, a broken fuse, or just a bad ground to give you a few possibilities. Consider returning to the facility that replaced your transmission; or if you did the work on your own, have a certified technician, like one from YourMechanic, come to your car’s location to diagnose the starting issue and pinpoint the needed repairs.

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What others are asking

Q: Headlight on the passenger side keeps going out. Have replaced the bulb and the ballast.

Hi there. Check the harness to the headlight with the headlight switch on and see if there is a voltage present. If there is a voltage, then check for resistance on the ground side of the harness. If there is...

Q: Service Engine light code P0011

Hello. I will help you with this issue. There are more than 5,000 Diagnostic Trouble Codes (DTC's) that a modern OBD-II vehicle such as yours could report. Any and all initial diagnostic work following up ANY of those codes is...